Quote:
Originally Posted by old_coot88
There's a quick & dirty way of measuring 'Gravel Gerties' of unknown value.  Crack it in two at the halfway point and measure the side that still has continuity, and multiply by two. |
Great tip !! 40yrs in the biz & I never heard it. I tip
my hat 2 U.
Oh BTW we called them bricks up here.....
73 Zeno